Summary
Study on Basic Zoning Information Concerning Renewable Energies (FY 2015)
The introduction of renewable energies is important not only as a countermeasure for
global warming but also from such viewpoints as establishing energy security,
developing autonomous and scattered energy systems and creating new industries andjobs. For this reason, in an effort to create basic data for the study of introduction andspread of renewable energies in coming years, the Ministry of the Environment (MoE)
conducted the Study on the Potential for the Introduction of Renewable Energies in FY
2009 and FY 2010 and the Development of Basic Zoning Information in FY 2011
through FY 2014, thereby estimating the abundance as well as introduction potential ofrenewable energies (non-residential use of PV power, use of PV for individual buildings,
wind power, small and medium-scale hydropower, geo-heat, solar heat and soil heat)and their possible introduction amount by different scenarios, and developing basic
zoning information.
This present work is intended to refine the introduction potential of renewableenergies having been studied, for the purpose of enhancing the understanding andconvenience of the people, local public entities, and business operators regarding theuse and introduction of renewable energies, promoting introduction of renewableenergies, and making contribution to the countermeasures against global warming.
This work is also intended to disclosure and provides the basic zoning information
through additional collection and development efforts. To put it more specifically, theintroduction potential has been developed for the land/ocean wind power generation,
small and medium-scale hydropower and geo-heat use (heat pump). Further, efforts
have been made to develop the design plan, design specifications and GIS data on
introduction potential to configure a portal site for disclosure and provision of the basic
zoning information.
1. Refinement of the Introduction Potential of Each Type of Renewable Energy(1) Refinement of introduction potential for wind power generation
1) Updating the wind regime map
The abundance of land/ocean wind power generation was estimated based on the most
up-to-date version of the wind regime map (land and ocean across the nation) developed
in FY 2013 Survey on System Development and Others toward Expanded Introduction
S-1of Renewable Energies" by the Ministry of the Environment (MoE). The result of thisestimate registered approximately 1,490 million kW for land wind power generationand 2,790 million kW for ocean wind power generation amount by different scenarios.
2) Refinement of introduction potential for land wind power generation
The introduction potential and possible introduction amount by different scenarios
were estimated based on the updated abundance under the same conditions as those in
the past financial years. The result of this estimate registered approximately 290
million kW for introduction potential and 100 million through 280 million kW for
possible introduction amount by different scenarios.
3) Refinement of introduction potential for ocean wind power generation
The introduction potential was re-estimated based on the updated abundance under
the same conditions as those in the past financial years. The possible introduction
amount by different scenarios was estimated as follows: Four scenarios of FIT unit price(15, 20, 22, 25 yen/kWh)  purchase period (for 20 years) and tentative calculation
conditions for business workability were set up based on the most up-to-date cost
information published by the Committee for Estimating Procurement prices, etc. in theMinistry of Economy, Trade and Industry.

Based on these results, development

enabling conditions (water depth meeting the requirement of PIRR ≧ 10% before tax)
by wind velocity were set up and developable meshes were extracted for this estimate.
The result of the estimate was approximately 1,410 million kW for introduction
potential and approximately 40 million through 280 million kW for possible
introduction amount by different scenarios.
(2) Refinement of introduction potential for small and medium-scale hydropower
The abundance (after correction) with the existing hydro power plant deducted wasestimated based on the abundance (after correction) developed in the previous-yearwork.

The introduction potential was re-estimated by reviewing the maximum

inclination angle as development disabling conditions.

The possible introduction

amount by different scenarios was estimated as follows: Three scenarios of FIT unit
price (24, 29, 34 yen/kWh)  purchase period (for 20 years) and tentative calculation
conditions for business workability were set up based on the most up-to-date costS-2

information published by the Committee for Estimating Procurement prices, etc. by theMinistry of Economy, Trade and Industry.

Based on these results, development

enabling conditions (unit price meeting the requirement of PIRR ≧ 7% before tax) was
set up, thereby calculating the total of the virtual power plant capacity that could bedeveloped.

The result of the estimate was approximately 9.79 million kW forabundance (after correction), 9.01 million kW for introduction potential andapproximately and 2.66 million through 4.65 million kW for possible introduction
amount by different scenarios.
(3) Refinement of introduction potential for use of geo-heat (heat pump)
1) Study on the refinement of introduction potential
To refine the estimation for FY 2014 work, a step was taken to review; (1) maximum
load for stand-alone house, (2) annual air conditioning load in a stand-alone house anddemand unit requirement, (3) ratio of air conditions (baseline) by building and category,(4) expenditure plan (repair charges), (5) kerosene price, (6) electric charges instand-alone house, large-sized apartment-house and office building, (7) unit price forheat pump as air heat source and (8) setting of absorption type hot and chilled watermachine COP.
2) Re-estimation of introduction potential
The introduction potential was re-estimated based on the above-mentioned "(2)review of demand unit requirement in a stand-alone house". The result of thisestimation was approximately 5,050 PJ/year.
Based on the above-mentioned review (1), the possible introduction amount bydifferent scenarios was re-estimated. The result was 0 kW through 322 million kW for
facility capacity and 0 PJ through 3,781PJ/year for heat supply.

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Table 1 Introduction potential of geo-heat on a nationwide scale
Layer classification
Small-scale commercial facilities
Intermediate-scale commercial facilities
Large-scale commercial facilities
Schools
Leisure facilities
Accommodations
Medical facilities
Public facilities
Large-scale
apartmenthouses/officebuildings
Stand-alone houses
Intermediate-scale apartment houses
Total

Introduction potential
for FY 2015(PJ/year)
1118106
87
72886
23
32

Reference: Total for
FY 2013 (PJ/year)
111810687
72886
23
32

2,041
2,612
5,050

459
466
1,321

Table 2 Introduction potential for the use of geo-heat (heat pump) possible introduction
amount by different scenarios
No0

1
2-1
2-23

Case
BAU =
preservationof the statusquo
Combined use
with otherenergies
Introductionof subsidies
Combined use
with otherenergies +introductionof subsidies

4

Assumedpurchase5

Technologicaldevelopment

Scenario

Facility
capacities(10,000 kW)

Reference: Total
for FY 2014
(10,000 kW)

0150

012365

519

103

65

3,505

3,769

438

170

14,7295,338

3,696413

32,236

13,788

3,781

341

31,119

3,322

3,615

152

2,203

2,691

283

132

Without subsidies orthe like
Facility capacity 50%,
annual thermal load67%
Percentage of subsidies
33%
Percentage of subsidies
50%
Facility capacities
50%/Annual thermalload 67%/subsidies
33%
Supporting the same
purchased price as theassumed purchaseprice (PV generation(10kWor more (100%purchase)) 36 yen/kWh
Initial investment 20%
off/running cost 20%
off

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Heat
supply(PJ/year)

Reference: Total
for FY 2014
(PJ/year)2. Development of basic zoning information on each renewable energy(1) Development of basic zoning information on wind power generation
The basic zoning information list developed in the past financial years was updated.
Eight pieces of information having higher priority which could be converted into GIS
data within this fiscal year were put into GIS data. Further, action was taken toupdate the GIS data of the already developed data where the data of the part of an
information provider has been updated.

Figure 1 Harbor Area

Figure 2 World Cultural Heritage Area

(2) Development of basic zoning information on small and medium-scale hydropowerFor the benefit of the local governments wishing to start a project of developing thesmall and medium-scale hydropower without sufficient information thereon, and thebusiness operators for power generation wishing to have an easy access of theinformation on the spacious area considered as having a development potential for
power generation, action was taken to establish a specific method of using the basic
zoning information by means of GIS software, a method for selecting a candidate side
for small and medium-scale hydropower development using the same information, anda method for an on-the-spot survey (local survey) at the selected candidate site using
the same information.

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Figure 3

Basic zoning information (head of water channel) for candidate selection(3) Development of basic zoning information on the use of geo-heat (heat pump)
To provide community-based information useful in the introduction of geo-heat (heatpump), a study was made through coordination with the authors of information toconvert into GIS data two pieces of information; (1) Overview of land subsidence areasin Japan (the Ministry of the Environment (MoE)) and (2) FY 2009 survey of groundwater abundance (Ministry of Economy, Trade and Industry). As a result, conversion
into GIS data was achieved for the data where conversion into GIS data was possible
and was considered to bring about effective results.

3. Disclosure and provision of basic zoning information and study of the system(1) Creation of portal site design planA plan has been worked out to implement the portal site program developed in thereports of past financial years and the GIS system configuration/operation method(proposal). In working out the plan, the contents developed in the FY 2014 work werereviewed and re-developed. Further, in an attempt to improve the basic specificationsof the portal site, addition of new specifications was studied.

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データベース

収集・整備情報
ゾー
ニン
グ
基礎
情報

自治体情報

風況マップ
地熱マップ
ポテンシャルマップ
法規制マップ
地形図：

情報提供システム（Web）

対象ユーザ【コンテンツ1】
全国再エネマップ

過年度収集データ等の集約

再エネ担当窓口
導入実績
推進施策
WebPage：

自治体

再生エネルギーゾーニング
基礎情報

自治体毎の再生エネルギー
関連情報【コンテンツ2】
地域の再エネ情報

入力システムを使って情報を収集

事業者

Figure 4 Overall conceptual illustration of this system(2) Development of portal site design specifications
Based on the functions and data required from the portal site and GIS systemdeveloped in past financial years, the design specifications were re-developed andre-studied in an effort to work out design specifications characterized by enhanced
feasibility and efficacy.

Figure 5 Screen design (proposed)(3) Development of GIS data for introduction potential
A study was made to find out more effective information classification method foreasier access to the GIS data on the portal site by business operators. The GIS data
newly developed this fiscal year was Shape file, which is the GIS's de-facto standard.

S-7